Electromagnetic radiation travels as 1.
a torsional wave
2.
a longitudinal wave
3.
a transverse wave
4.
an elliptical wave

Protons and neutrons are found within the nucleus of an atom

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics